Insulator for securing telegraph and other wires



(No Model.)

G. W. HILL.

INSULATOR FOR SECURING TELEGRAPH AND OTHER WIRES.

No. 324,692. Patented Aug. 18, 1885.

UNITED STATES PATENT OFFICE.

GEORGE W. HILL, OF QUINCY, MASSACHUSETTS.

INSULATOR FOR SECURING TELEGRAPH AND OTHER WIRES.

SPECIFICATION forming part of Letters Patent No. 324,692, dated August18, 1885.

Application filed May 21, 1885. (No model.)

To all whom it may concern:

Be it known that I, GEORGE WV. HILL, a citizen of the United States,residing at Quincy, in the county of Norfolk and State of Massachusetts,have invented a new and useful Attachment for Securing and InsulatingTelephone and other WVires, of which the following is a specification.

The object of my invention is to produce a simple, cheap, and effectivemeans of attaching electric or other wires to stationary surfaces,insulating them, if necessary, or otherwise, as the case may be.

' attaching medium.

In wires, insulated or not, for telephoning at distances where nobattery is required, it is desirable that no sound or vibration shouldbe communicated to the wires through the This I provide for.

In uninsulated wires,where a battery is employed, my attachment providesan insulator which keeps them free from all electrical influencescommunicated by contact with any conducting influence, excepting that ofthe surrounding atmosphere.

In insulated wires it is still necessary to have a further insulation inthe device by which they are attached to the wall or other stationarysurface to prevent any possible conduction by accident or otherwise.This I provide for.

It is also desirable to have the attachment for the wire so made that noturns of the wire about the attaching device will be required, thusavoiding any bending or twisting of the wire and allowing it to bereadily removed and used in any other place without the necessity ofstraightening the wire, which in an insulated wire would sometimesdestroy the insulation. This I provide for.

It is also obvious that a wire without any turns about an attachingdevice is a better conductor than one with such turns, a perfectlystraight wire having no obstacles to overcome.

It is also desirable that the greatest possible facility should begained for putting up the lines of wire, and this my attachment providesfor.

It is also desirable to make asimple attachment for a circuit-wire forautomatic firealarms or similar contrivances, and this I provide for.

In the drawings I have shown in Figures 1,

2, and 3 top views of my attaching device, and in Figs. 4, 5, 6, 7, and8 sections of the same.

I make my attachment with two plates, A and B, of hard rubber or someother 1nsulating material, when it is necessary to keep the rubber awayfrom the wall, and fasten them to the wall by a screw, 5, passingthrough the plates and into the stationary surface or wall, the plate 13impinging upon the wall. When first put up, the wire or wires should beput in. place, as shown in Fig. 4, and then when the screw is turned theplates A and B Will be forced together and come into the position shownin Fig. 5, having embedded in them the wires 0 and D, or either of them,as D in Fig. 1, provided the material composing the plates issufficiently soft to allow it. I prefer to place upon the outer surfaceof the plate A a metal or rigid washer, E, to aid in compressing theplates by means of the screw s. When the wires are in position, as shownin Fig. 4, a slight turn of the screw will hold them sufficiently firmto enable the person putting up the wire to pull and straighten them,and then further turns of the screw w1ll fasten the wires securely, asshown in Fig. 5.

If the wire is to be secured to the wall, only one plate A, as shown inFig. 6, is necessary for the purpose.

With my fastener a single wire may be secured to or free from the wall,as shown in Fig. 1, or two wires, as shown in Fig. 2, or a circuit-wire,as shown in Fig. 3; or more w1res may be put into the same fastening, ifdesired; or a series of plates may be superimposed on each other,withwires between, if desired, as shown in section in Fig. 7.

I prefer to make my fastener of round plates, with a single screwpassing centrally through them; but other forms may be found useful, andin some cases (for a number of wires, for

instance) more than one screw would be de sirable, as shown in sectionin Fig. 8.

My device is especially intended for interior work; but it may be usedeffectively 011 outside work or any electric or telephone wires.

I claim as my invention- 1. A device for securing and insulating wires,consisting of an insulating or securing plate made of an insulatingmaterial suffieiently soft and yielding to allow the wire-to embeditself into it, a surinounting plate sufficiently rigid to serve as aclamping-plate, and a screw passing through both such plates andentering the support, as set forth.

2. An insulating or clamping device consisting of plates A B, of softinsulating material, rigid plate E, and screw S, passing all theseplates and into the support, as set forth.

An insulating and securing device, con- IO sisting of plates of softyieldiuginsulating material surmounted by a rigid clamping-plate, such.plates having rcgistering-perforations, and a fastening and clampingscrew passing through such perforations and into the support, the partsbeing combined as and for the purpose set forth.

G IEO. XV. HILL.

Vitnesses:

CHAS. F. SLEEPER, J J MCNUTT, Jr,

